TalkTalk phone line query re 17070

Hi all.

Anyone who has a TalkTalk phone line, which I guess most will have if you have TT Broadband.

Does your line respond to 17070 and exactly what responses and options do you get from it if any, or does it just give the phone number?
TIA.

You can only obtain your 'phone No.

All other features have been removed.

Thanks very much, a great help.